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Finding the Third Proportional to 11,163 and 17,357

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Solution

The third proportional to 11,163 and 17,357 is: 26,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163 : 17,357 = 17,357 : x
  2. Step 2: Convert to fraction form
    11,163/17,357 = 17,357/x
  3. Step 3: Cross multiply
    11,163x = 17,357 × 17,357
  4. Step 4: Simplify right side
    11,163x = 301,265,449
  5. Step 5: Solve for x
    x = 301,265,449/11,163
  6. Step 6: Final answer
    x = 26,987.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.